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Tool Directory

CVE-2009-3726

HighPublished

The nfs4_proc_lock function in fs/nfs/nfs4proc.c in the NFSv4 client in the Linux kernel before 2.6.31-rc4 allows remote NFS servers to cause a denial of...

Published: Nov 9, 2009
Updated: Aug 7, 2024
Assigning CNA: redhat
Evidence observed: Oct 15, 2009

Primary CVSS

7.8/ 10High

nvd · CVSS 2.0

AV:N/AC:L/Au:N/C:N/I:N/A:C

EPSS probability estimate

12.0%

Moderate · next 30 days

Percentile: 96.0%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The nfs4_proc_lock function in fs/nfs/nfs4proc.c in the NFSv4 client in the Linux kernel before 2.6.31-rc4 allows remote NFS servers to cause a denial of service (NULL pointer dereference and panic) by sending a certain response containing incorrect file attributes, which trigger attempted use of an open file that lacks NFSv4 state.

Sources

Linux Kernel < 2.6.31-rc4 - 'nfs4_proc_lock()' Denial of ServiceExploit
Simon Vallet · linux · Oct 15, 2009

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